'use client'
import { Button } from '@/components/ui/button'
import { Input } from '@/components/ui/input'
import { Label } from '@/components/ui/label'
import React, { useState, useEffect } from 'react'
import Image from 'next/image'
import { login_github } from './actions'
import { toast } from 'sonner'
import { setUserInfo, useUserStore } from '@/store/user'
import { useRouter } from 'next/navigation'

const LoginPage = () => {
  const [isLoading] = useState(false)
  const { user, isInitialized } = useUserStore()
  const router = useRouter()

  // 如果用户已登录，重定向到首页
  useEffect(() => {
    if (isInitialized && user) {
      toast.info('您已经登录，正在跳转到首页...')
      router.replace('/')
    }
  }, [isInitialized, user, router])

  // 如果用户已登录，不渲染登录页面内容
  if (user) {
    return null
  }

  const handleGithubLogin = async () => {
    try {
      await login_github(window.location.origin)
    } catch (error: any) {
      toast.error(error.message)
    }
  }

  return (
    <div className='min-h-screen bg-gradient-to-br from-blue-50 via-indigo-50 to-purple-50'>
      <div className='grid min-h-screen'>
        {/* Left side */}
        <div className='flex items-center justify-center p-8'>
          <div className='w-full max-w-md space-y-8 -mt-20'>
            <div className='text-center space-y-2'>
              <div className='w-full flex justify-center'>
                <div className='w-fit flex justify-center items-center gap-2 bg-white/60 rounded-full border border-gray-200/50 px-3 py-1 text-sm text-gray-600 backdrop-blur-sm'>
                  <Image
                    src={'/logo.gif'}
                    alt='logo'
                    width={50}
                    height={50}
                  />
                  <span className='font-semibold'>AI Chat</span>
                </div>
              </div>
              <h1 className='text-3xl font-bold text-gray-900 mt-6'>登录</h1>
              <p className='text-gray-600'>登录您的帐户以继续</p>
            </div>

            <div className='space-y-6'>
              <div className='space-y-3'>
                <Button
                  variant='outline'
                  className='w-full py-4 bg-white dark:bg-white text-black'
                  onClick={handleGithubLogin}
                  disabled={isLoading}
                >
                  <svg
                    xmlns='http://www.w3.org/2000/svg'
                    viewBox='0 0 24 24'
                  >
                    <path
                      d='M12 .297c-6.63 0-12 5.373-12 12 0 5.303 3.438 9.8 8.205 11.385.6.113.82-.258.82-.577 0-.285-.01-1.04-.015-2.04-3.338.724-4.042-1.61-4.042-1.61C4.422 18.07 3.633 17.7 3.633 17.7c-1.087-.744.084-.729.084-.729 1.205.084 1.838 1.236 1.838 1.236 1.07 1.835 2.809 1.305 3.495.998.108-.776.417-1.305.76-1.605-2.665-.3-5.466-1.332-5.466-5.93 0-1.31.465-2.38 1.235-3.22-.135-.303-.54-1.523.105-3.176 0 0 1.005-.322 3.3 1.23.96-.267 1.98-.399 3-.405 1.02.006 2.04.138 3 .405 2.28-1.552 3.285-1.23 3.285-1.23.645 1.653.24 2.873.12 3.176.765.84 1.23 1.91 1.23 3.22 0 4.61-2.805 5.625-5.475 5.92.42.36.81 1.096.81 2.22 0 1.606-.015 2.896-.015 3.286 0 .315.21.69.825.57C20.565 22.092 24 17.592 24 12.297c0-6.627-5.373-12-12-12'
                      fill='currentColor'
                    />
                  </svg>
                  Login with GitHub
                </Button>
              </div>
              <div className='text-center'>
                <p className='text-sm text-gray-600'>
                  还没有帐户?{' '}
                  <span className='text-blue-600 hover:text-blue-700 font-medium'>
                    登录自动注册
                  </span>
                </p>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  )
}

export default LoginPage
